In this C program, we will learn to To find find ones complement of a binary number.
Required Knowledge
Algorithm to find ones complement of a binary number
- To find the ones complement of a number, we will toggle the bits of the number. Change all 1's to 0's and all 0's to 1's.
For Example :
Binary Number = 00101011
Ones Complement = 11010100
C program to find ones complement of a number
#include <stdio.h>
#include <string.h>
int main() {
char binaryNumber[100], onesComplement[100];
int counter, error=0, digitCount;
printf("Enter a Binary Number\n");
scanf("%s", binaryNumber);
digitCount = strlen(binaryNumber);
for(counter=0; counter < digitCount; counter++) {
if(binaryNumber[counter]=='1') {
onesComplement[counter] = '0';
} else if(binaryNumber[counter]=='0') {
onesComplement[counter] = '1';
} else {
printf("Error :( ");
return 1;
}
}
onesComplement[digitCount] = '\0';
printf("Ones Complement : %s", onesComplement);
return 0;
}
Output
Enter a Binary Number 11110010101 Ones Complement : 00001101010
Enter a Binary Number 10001111 Ones Complement : 01110000
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